JPH0262262B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to products for evaporating air treatment vapors into the atmosphere, and more particularly, to products that evaporate air treatment vapors into the atmosphere, and more particularly, to continuously evaporate volatile compositions into the atmosphere from a thin film permeable to the atmosphere. Concerning an evaporating device.

BACKGROUND OF THE INVENTION Volatile substances such as perfumes and deodorizers are commonly used as indoor air fresheners. Various containers have been used to contain volatile substances and evaporate them into the atmosphere as vapors. Older types of products that utilize glass bottles and bottles; newer packet-type products that contain a punctureable, impermeable capsule of volatile material within a permeable enclosure; There are plastic box-type products that have a peelable cover and the removal of the cover initiates vapor evaporation.

An example of a packet type product is PCT No. 82-02700.
It is disclosed in the publication No. An example of a plastic box type product is disclosed in US Pat. No. 4,145,001.

(Problems to be Solved by the Invention) Each of the three types of devices described above has drawbacks. For example, products that utilize glass bottles have the drawbacks of being bulky, expensive, and difficult to store in certain areas. Packet-type products do not release a gush of fragrance (or other air treatment vapors) when the inner capsule is broken. (Because after such a breach the volatile substances need to migrate through the permeable membrane before being evaporated as vapor). This burst of aroma is desirable in that it can overcome any odors that might encourage use of the product.

Packet-type products and plastic box-type products may be tampered with by small children. If the volatile liquids contained are not retained in matte or other absorbent materials, there is a considerable risk that children will ingest them as food. Using absorbent materials to eliminate the risk of ingestion eliminates the possibility of using liquid as a visible signal of use. A further problem is that if the transparent surface (through which volatile substances exit) comes into contact with the finished surface, it can damage the finished surface.

SUMMARY OF THE INVENTION An object of the present invention is to provide a device capable of continuously evaporating steam, which solves the problems of the prior art.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides an enclosure having a permeable thin film through which a volatile composition is permeable and evaporated into the atmosphere as vapor. ; a cover member having an opening to prevent the permeable thin film from being touched by hands and to improve the flow of air from the permeable thin film; and a cover member located under the cover member and removably adhered to the permeable thin film. an impermeable strip to prevent evaporation prior to removal; and a leader attached to one end of the impermeable strip in the center, which leader covers the strip under the cover member over its length. The leader portion has a gripping end on the outside of the cover member; this configuration allows the cover member to be in place to protect the permeable membrane and the leader portion can be pulled to release the impermeable strip. The structure is such that the transparent thin film can be exposed by peeling it off.

In a preferred embodiment, the enclosure is a plastic shell with a thin film further heat sealed around the periphery. From this, this example can be considered a plastic box type product.

In a preferred embodiment, the volatile composition is a liquid (free liquid) within an enclosure without absorbent material.
The transparent membrane and the liquid have optical quantities such that the liquid can be observed through the membrane. That is, the thin film is
Transparent or translucent to the extent that the liquid can be seen, possibly due to the coloration of the liquid. Because of this, colored liquids serve as simple usage indicators. Additionally or alternatively, it may also be made of transparent plastic for the same purpose.

Preferably, the transparent thin film lies substantially in a single plane. In a more preferred embodiment, the enclosure is constructed from plastic lining, preferably thermoformed lining.
In this embodiment, the edges of the permeable membrane (with the opaque strip before removal) and cover member are all aligned and secured together.

In the present invention, the impermeable strip is peeled off by pulling on the leader to expose the transmissive membrane, while the cover member holds the transmissive membrane in place and out of reach of small children. There is. Additionally, the cover member can be designed to provide a comfortable profile.

When the impermeable strip is removed, the permeable membrane that has been in contact with the volatile composition is already wet, allowing a burst of aroma (or other air treatment vapor) to escape. Articles of the invention are not easily tampered with by small children. Furthermore, the present invention can be easily manufactured as a product that is not expensive or bulky, making it suitable for placement in any out-of-the-way location. According to the present invention, an excellent air cleaning device for "small spaces" can be provided.

Examples A preferred air treatment article 10 is shown in the drawings. The main body of the air treatment article 10 is a plate 14 and a thin film 16.
It is a closed container 12 formed by. The thin film 16 is melt-sealed along the edge 18 of the back plate 14. A volatile liquid 20 is contained within the closed container 12.
The state is shown in FIGS. 2, 4, and 5. A strip 22 is adhered to the outer surface 17 of the membrane 16. This strip 22 serves to prevent vapors of volatile liquid 20 from evaporating from membrane 16 until strip 22 is removed.

Membrane 16 is permeable to volatile liquid 20, so that after strip 22 is removed, liquid 20 is permeated through membrane 16 and evaporated into the atmosphere as an air treatment vapor. Before strip 22 is removed, it is adhered to the entire surface of membrane 16 with an adhesive (not shown). Strip 22 is impermeable to volatile liquids and thus prevents vapor evaporation as described above. The strip 22 and the membrane 16 form a laminate, and the strip 22 can be easily peeled from the laminate.

Cover member 24 is attached to container 12 along edge 18 of platen 14. The cover member 24 has cross members 26 forming a grid, and the transparent thin film 16
act to protect the An opening 28 is formed between the cross members 26 of the cover member 24. This opening facilitates air flow from membrane 16.

In FIGS. 2 and 4, the cover member 24 is provided with shelves 29 on both sides of the cover member 24, which are structured to accommodate the platen 14 and contact the edge 18 of the platen 14. The cross member 26 is connected to the top portion 3 of the cover member 24.
0, and its lower end is located at a distance above the location of the membrane 16 so as to form a receiving space for the impermeable strip 22 and a leader portion 34, which will be described below.

A leader portion 34 is attached to a first end 38 of the strip 22 at a central portion 36. When the leader section 34 is folded back over the strip 22, the leader section 34 is folded back onto the strip 22.
4 covers the strip 22 by the length of the leader below the cover member 24. Leader portion 34 emerges from the exit of lateral opening 38 shown in FIGS. 1 and 2 as a gripping end 40 on the outside of cover member 24. Preferably, leader portion 34 is integrally formed with peelable impermeable strip 22.

Volatile liquid 20 is free within container 12. This is because there is no absorbent material in the container as well. Preferably, the liquid 20 is colored to make it more visible through the membrane 16 after the strip 22 is removed. container 12
Preferably, membrane 16 is translucent or transparent to facilitate observation of the amount of liquid 20 remaining within. These visual characteristics of membrane 16 and liquid 20 serve as reliable usage indicators.

Since the edge 18 of the platen 14 is in a single plane, the thin film 16 is also substantially in a single plane. Sara 14,
All ends of membrane 16 and cover member 24 are aligned and secured to each other. This makes it easy to assemble the air treatment article of the present invention. The laminate consisting of the thin film 16 and the strip 22 is melt-sealed to the edge 18 of the strip, and the strip 14 is slid into the shelf 29 of the cover member 24, and then the edge 18 of the strip is glued and fixed to the shelf 29. .

To vaporize air treatment vapor using the article of the present invention, article 10 can be held in one hand and gripping end 40 of leader section 34 can be pulled with the other hand. This action causes the strip 2 to be removed from the thin film 16.
Peeling of 2 begins at a distance from the gripping end 40. Leader part 34 and strip 2
2 and the air treatment steam begins to evaporate.

The present invention can be used as an air freshening product when attempting to diffuse fragrance. but,
Other volatile air treatment compositions may also be used. One good example is pesticides.

The choice of packaging material depends on the volatile liquid used.
That is, the permeable membrane is selected to allow adequate evaporation of such liquid. The impermeable strip must be chosen to block the passage of such liquids. A specific liquid or specific material is not the gist of the present invention. However, as an example, one may wish to use terpene-based fragrances, low density polyethylene as a permeable thin film, and coated aluminum foil as an impermeable strip. Various suitable combinations are known to those skilled in the art. Particular attention is drawn to the disclosure of the aforementioned US Pat. No. 4,145,001.

Since there are no problems with chemical interactions between the liquid and the components, a variety of materials can be used. However, the plate 14 must be made of a material that is impermeable to the liquid 20. Cover member 24 is preferably thermoformed and membrane 16 and strip 22 are preferably heat sealed along edge 18.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a preferred air treatment article according to the present invention, FIG. 2 is a side sectional view taken along arrow 2-2 in FIG. 1, FIG. 3 is an exploded side view, and FIG. 4 is an exploded side view. 1, and FIG. 5 is an enlarged partial view of the portion circled in FIG. 2. Explanation of symbols of main parts, 12...Closed container, 14
...further, 16...thin film, 20...volatile liquid, 22...
Strip, 24...Cover member, 26...Cross member, 28...Opening, 34...Leader portion, 40...Gripping end.

Claims (1)

[Scope of Claims] 1. An air treatment article having an enclosure having a permeable thin film portion through which a volatile composition is evaporated as vapor into the atmosphere through a permeable thin film portion, the permeable thin film being in contact with a hand. a cover member having an opening to prevent this and improve the flow of air from the thin film; and a cover member that is located under the cover member and is attached to the thin film so that it can be peeled off, and evaporates before being peeled off. an impermeable strip; and a leader portion attached to one end of the impermeable strip at a central portion, the leader portion covering the length of the strip below the cover member; A leader portion has a gripping end on the outside of the cover member; pulling on the leader portion peels off the impermeable strip to expose the permeable membrane while the cover member protects the membrane. An air treatment article characterized in that the air treatment article is located in an appropriate position as shown in FIG. 2. The air treatment article according to claim 1, wherein the volatile composition in the enclosure is a free liquid. 3. According to claim 2, the thin film and the liquid have an optical quantity such that the presence of the liquid can be detected through the transparent thin film and can thereby be used as a usage indicator. air treatment articles. 4. The air treatment article according to claim 1, 2 or 3, wherein the permeable thin film portion is located substantially within a single plane. 5. The enclosure consists of a plastic cage with a membrane sealed around its periphery, and the cover member is a plastic grid, with the membrane, the cover member and all edges aligned and fixed to each other. An air treatment article according to claim 1, 2 or 3, characterized by: 6. The air treatment article according to claim 1, 2 or 3, characterized in that the plastic grain is made of transparent plastic.